This is an activity about vectors and velocity. It outlines the addition and subtraction of vectors, and introduces the application of trigonometry to describing vectors. The resource is designed to support student analysis of THEMIS (Time History...(View More) of Events and Macroscale Interactions during Substorms) Magnetometer line-plot data. Learners will complete worksheets consisting of problem sets that allow them to work with vector data in magnetic fields. This is activity 15 from Exploring Magnetism: Earth's Magnetic Personality.(View Less)

This is an activity about auroras and the scientific terminology used to describe them. Learners will read an article that provides an introduction to specific terms and concepts related to auroras and auroral substorms and examine photographs of a...(View More) 2003 aurora and descriptions of an 1859 aurora to identify the various phases of auroral substorms. This is activity 11 from Exploring Magnetism: Magnetic Mysteries of the Aurora.(View Less)